Sökning: "data-link"

Visar resultat 1 - 5 av 37 uppsatser innehållade ordet data-link.

  1. 1. Deep Neural Networks for Object Detection in Satellite Imagery

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen Vi3

    Författare :Frederik Fritsch; [2023]
    Nyckelord :Object Detection; Satellite Imagery; Deep Neural Networks; YOLOv8; xView;

    Sammanfattning : With the development of small satellites it has become easier and cheaper to deploy satellites for earth observation from space. While optical sensors capture high-resolution data, this data is traditionally sent to earth for analysis which puts a high constraint on the data link and increases the time for making data based decisions. LÄS MER

  3. 2. Examining the Effects of AWGN Jamming on a Tactical Data Link Communication System

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Noor Schroen; [2023]
    Nyckelord :Tactical Data Links; VOACAP; HF; AWGN; Jamming; Tactical Data Links; VOACAP; HF; AWGN; Jamming; Tactical Data Links; VOACAP; HF; AWGN; Jamming;

    Sammanfattning : This master thesis investigates the jamming of Tactical Data Links (TDLs). The goal is to make a model that is capable of giving an overview of a communication system under jamming conditions, offering the user a suggestion for the best coding scheme and modulation to use in any given situation. LÄS MER

  4. 3. Machine Learning assisted gNodeB Data Link Layer Capacity Management

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för systemteknik

    Författare :Adam Axelsson; [2023]
    Nyckelord :machine learning; telecommunications; 5g; packet losses; pacing algorithm;

    Sammanfattning : In the uplink direction of 5G New Radio, signals are sent between Ra-dio Units and Digital Units. The production of these signals is non-deterministic, leading to signals often being produced in bursts. Thesesignal bursts can lead to exceeding the Data Link Layer capacity, whichcauses packet losses. LÄS MER

  5. 4. A Comprehensive Taxonomy of Attacks and Mitigations in IoT Wi-Fi Networks : physical and data-link layer

    M1-uppsats, Linnéuniversitetet/Institutionen för datavetenskap och medieteknik (DM)

    Författare :Sarmed Almjamai; [2022]
    Nyckelord :Attack; Mitigation; Tools; Vulnerability; Security protocol; WPA2; WPA3; Wi-Fi; IoT; physical layer; data-link layer; MitM; DoS; Key-recovery; Traffic decryption;

    Sammanfattning : The number of Internet of Things (IoT) devices is rising and Wireless Fidelity (Wi-Fi) networks are still widely used in IoT networks. Security protocols such as Wi-Fi Protected Access 2 (WPA2) are still in use in most Wi-Fi networks, but Wi-Fi Protected Access 3 (WPA3) is making its way as the new security standard. LÄS MER

  7. 5. Implementation of LPWAN protocols for Water Sense : Integration of LoRa and Contiki OS with the Rime stack

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Signaler och system

    Författare :Barry Dyi; [2022]
    Nyckelord :Contiki; LoRa; Telecommunications; Embedded Systems; WSN; IoT;

    Sammanfattning : The purpose of this thesis rose from tackling a specific project led by Cybercom Group. Water Sense was proposed after municipalities expressed the need to conveniently conduct measurements on water in Swedish lakes, and remotely get access to these data. LÄS MER